With rotary speed up to 13500rpm, this powerful pneumatic sander is designed to deliver high efficient performance and serve multiple purposes, such as polishing and waxing, mirror finish, rust and paint removal, welding area grinding and polishing. Features: Fine steel motor with rotary speed up to 13500rpm, sturdy and powerful enough to deliver smooth and stable grinding. Ergonomic design, compact and lightweight, fits great in the palm and provides comfortable grip. Equipped with alloy rotor which is High quality to provide long service long and greatly improve grinding efficiency. With self-stick disc for quick change of backing pad, and not easy to fall off. Designed with a 1/4" air inlet and a mesh hole exhaust vent. Rotary speed can be adjusted by turning air inflow controller. Work with different types of backing pads for various applications, such as wood polishing, rust and paint removal, car waxing, welding area grinding and polishing. Specifications: Material: Metal Color: Red / Black Color sent randomly Disc Size: 125mm(5") / 150mm(6") (Optional) Air Consumption: 0.3L/min Air Inlet Screw thread: 1/4" Orbit Diameter: 5mm Working Pressure: 0.63Mpa No-load Speed: 13500 (rpm) Package Weight: 1100g / 38.8oz Package Size: 19.2*11.5*14.5cm / 7.55 * 4.52 * 5.7in Packing List: 1 * Pneumatic Sander 1 * Wrench